Prepare release, part 2

README.rst

@@ -35,7 +35,7 @@ Mastodon.py
    mastodon.toot('Tooting from python using #mastodonpy !')
 
 Python wrapper for the Mastodon ( https://github.com/tootsuite/mastodon/ ) API. 
-Feature complete for public API as of Mastodon version 2.0.0 and easy to get started with.
+Feature complete for public API as of Mastodon version 2.1.0 and easy to get started with.
 
 You can install Mastodon.py via pypi:
 

mastodon/Mastodon.py

@@ -254,6 +254,12 @@ class Mastodon:
             return False
         return True
 
+    def get_supported_version(self):
+        """
+        Retrieve the maximum version of Mastodon supported by this version of Mastodon.py
+        """
+        return __SUPPORTED_MASTODON_VERSION
+    
     def auth_request_url(self, client_id=None, redirect_uris="urn:ietf:wg:oauth:2.0:oob",
                          scopes=['read', 'write', 'follow']):
         """Returns the url that a client needs to request the grant from the server.